Protecting Your Lawn from the Summer Heat — How to Care for Kikuyu & LM Grass in Hot Weather

South African summers can be scorching, and your lawn feels it too. A common question people ask in December is: “How do I keep my grass green in extreme heat?”

Here’s how to protect Kikuyu and LM grass from heat stress and keep your lawn thriving through the hottest months.

1. Water Deeply, Not Frequently

During hot months, watering strategy makes all the difference. Instead of daily watering, soak your lawn deeply 2–3 times per week. This helps roots grow deeper, making your grass more drought-tolerant.

Early morning watering is best — between 5–8 a.m. — when evaporation is low and plants can absorb moisture efficiently.

2. Don’t Cut Too Short

Scalping your lawn exposes roots to the sun and accelerates drying.

• Keep Kikuyu at around 4–5 cm.

• Keep LM Berea slightly higher, 5–6 cm, to provide shade to the soil.

Regular mowing at the correct height prevents stress and promotes steady growth.

3. Feed the Soil, Not Just the Grass

Hot weather can deplete soil nutrients quickly. Apply Quick Lawn’s Special Compost Mix in early summer — it nourishes the soil, improves water retention, and reduces stress on grass. This slow-release nutrition helps lawns maintain colour even during dry spells.

4. Avoid Fertilising During Extreme Heat

If temperatures are soaring above 32°C, hold off on strong fertilisers. High heat can cause fertiliser burn and stress your lawn. Instead, opt for organic compost or light top-dressing to gently improve soil health.

5. Keep Foot Traffic to a Minimum

Heat-stressed lawns are more vulnerable to damage. Avoid heavy walking, parking, or playing on dry areas until cooler conditions return.

6. Watch for Signs of Heat Stress

If you see:

• Grass turning dull or bluish-green

• Footprints that stay visible

• Dry, brittle blades

…your lawn needs water immediately. A deep soak will usually help it recover within days.

LM vs Kikuyu in Summer

• Kikuyu thrives in hot, sunny weather but may need more frequent watering.

• LM Berea handles shade and dry periods well but can suffer if overwatered — so check the soil before irrigating.

Enjoy the Summer, Keep the Green

Summer doesn’t have to mean dry, patchy lawns. With the right watering habits, mowing height, and soil care, both Kikuyu and LM grass can stay lush and strong — even in the South African heat.

So, before the thermometer rises, give your lawn a bit of TLC — and enjoy a green, healthy space all summer long.